1499645957 has 8 divisors (see below), whose sum is σ = 1504760832. Its totient is φ = 1494540000.

The previous prime is 1499645929. The next prime is 1499645963. The reversal of 1499645957 is 7595469941.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1499645957 - 2²² = 1495451653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1499645896 and 1499645905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1499645857) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 524582 + ... + 527432.

It is an arithmetic number, because the mean of its divisors is an integer number (188095104).

Almost surely, 2^1499645957 is an apocalyptic number.

It is an amenable number.

1499645957 is a deficient number, since it is larger than the sum of its proper divisors (5114875).

1499645957 is a wasteful number, since it uses less digits than its factorization.

1499645957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4459.

The product of its digits is 12247200, while the sum is 59.

The square root of 1499645957 is about 38725.2625168636. The cubic root of 1499645957 is about 1144.6241736746.

The spelling of 1499645957 in words is "one billion, four hundred ninety-nine million, six hundred forty-five thousand, nine hundred fifty-seven".